package io.renren.modules.neo4j.service;

import io.renren.modules.neo4j.entity.node.course;
import io.renren.modules.neo4j.entity.node.knowledge;

import java.util.Optional;

public interface KnowledgeService {
    knowledge getKnowledgeById(Long id);

    course getKnowledgeByCourseId(Long id);
}
